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/* app_manifest.c - Alpine Package Keeper (APK)
*
* Copyright (C) 2005-2017 Natanael Copa <n@tanael.org>
* Copyright (C) 2008-2017 Timo Teräs <timo.teras@iki.fi>
* Copyright (C) 2017 William Pitcock <nenolod@dereferenced.org>
* All rights reserved.
*
* SPDX-License-Identifier: GPL-2.0-only
*/
#include <stdio.h>
#include <sys/stat.h>
#include "apk_defines.h"
#include "apk_applet.h"
#include "apk_database.h"
#include "apk_extract.h"
#include "apk_version.h"
#include "apk_print.h"
#include "apk_adb.h"
#include "apk_pathbuilder.h"
/* TODO: support package files as well as generating manifest from the installed DB. */
static char *csum_types[APK_CHECKSUM_SHA1 + 1] = {
/* Note: if adding new algorithms, update apk-manifest(8) */
[APK_CHECKSUM_MD5] = "md5",
[APK_CHECKSUM_SHA1] = "sha1",
};
static void process_package(struct apk_database *db, struct apk_package *pkg)
{
struct apk_out *out = &db->ctx->out;
struct apk_installed_package *ipkg = pkg->ipkg;
struct apk_db_dir_instance *diri;
struct apk_db_file *file;
struct hlist_node *dc, *dn, *fc, *fn;
const char *prefix1 = "", *prefix2 = "";
char csum_buf[APK_BLOB_CHECKSUM_BUF];
if (ipkg == NULL)
return;
if (apk_out_verbosity(out) > 1) {
prefix1 = pkg->name->name;
prefix2 = ": ";
}
hlist_for_each_entry_safe(diri, dc, dn, &ipkg->owned_dirs,
pkg_dirs_list) {
hlist_for_each_entry_safe(file, fc, fn, &diri->owned_files,
diri_files_list) {
apk_blob_t csum_blob = APK_BLOB_BUF(csum_buf);
memset(csum_buf, '\0', sizeof(csum_buf));
apk_blob_push_hexdump(&csum_blob, APK_BLOB_CSUM(file->csum));
apk_out(out, "%s%s%s:%s " DIR_FILE_FMT,
prefix1, prefix2,
csum_types[file->csum.type], csum_buf,
DIR_FILE_PRINTF(diri->dir, file));
}
}
}
struct manifest_file_ctx {
struct apk_out *out;
struct apk_extract_ctx ectx;
const char *prefix1, *prefix2;
};
static int process_pkg_file(struct apk_extract_ctx *ectx, const struct apk_file_info *fi, struct apk_istream *is)
{
struct manifest_file_ctx *mctx = container_of(ectx, struct manifest_file_ctx, ectx);
struct apk_out *out = mctx->out;
char csum_buf[APK_BLOB_CHECKSUM_BUF];
apk_blob_t csum_blob = APK_BLOB_BUF(csum_buf);
if ((fi->mode & S_IFMT) != S_IFREG) return 0;
memset(csum_buf, '\0', sizeof(csum_buf));
apk_blob_push_hexdump(&csum_blob, APK_DIGEST_BLOB(fi->digest));
apk_out(out, "%s%s%s:%s %s",
mctx->prefix1, mctx->prefix2,
apk_digest_alg_str(fi->digest.alg), csum_buf,
fi->name);
return 0;
}
static int process_v3_meta(struct apk_extract_ctx *ectx, struct adb_obj *pkg)
{
struct manifest_file_ctx *mctx = container_of(ectx, struct manifest_file_ctx, ectx);
struct apk_out *out = mctx->out;
struct adb_obj paths, path, files, file;
struct apk_digest digest;
struct apk_pathbuilder pb;
char buf[APK_DIGEST_MAX_LENGTH*2+1];
apk_blob_t hex;
int i, j, n;
adb_ro_obj(pkg, ADBI_PKG_PATHS, &paths);
for (i = ADBI_FIRST; i <= adb_ra_num(&paths); i++) {
adb_ro_obj(&paths, i, &path);
adb_ro_obj(&path, ADBI_DI_FILES, &files);
apk_pathbuilder_setb(&pb, adb_ro_blob(&path, ADBI_DI_NAME));
for (j = ADBI_FIRST; j <= adb_ra_num(&files); j++) {
adb_ro_obj(&files, j, &file);
n = apk_pathbuilder_pushb(&pb, adb_ro_blob(&file, ADBI_FI_NAME));
apk_digest_from_blob(&digest, adb_ro_blob(&file, ADBI_FI_HASHES));
hex = APK_BLOB_BUF(buf);
apk_blob_push_hexdump(&hex, APK_DIGEST_BLOB(digest));
apk_blob_push_blob(&hex, APK_BLOB_STRLIT("\0"));
apk_out(out, "%s%s%s:%s %s",
mctx->prefix1, mctx->prefix2,
apk_digest_alg_str(digest.alg), buf,
apk_pathbuilder_cstr(&pb));
apk_pathbuilder_pop(&pb, n);
}
}
return -ECANCELED;
}
static const struct apk_extract_ops extract_manifest_ops = {
.v2meta = apk_extract_v2_meta,
.v3meta = process_v3_meta,
.file = process_pkg_file,
};
static void process_file(struct apk_database *db, const char *match)
{
struct apk_out *out = &db->ctx->out;
struct manifest_file_ctx ctx = {
.out = out,
.prefix1 = "",
.prefix2 = "",
};
int r;
apk_extract_init(&ctx.ectx, db->ctx, &extract_manifest_ops);
if (apk_out_verbosity(out) > 1) {
ctx.prefix1 = match;
ctx.prefix2 = ": ";
}
r = apk_extract(&ctx.ectx, apk_istream_from_file(AT_FDCWD, match));
if (r < 0) apk_err(out, "%s: %s", match, apk_error_str(r));
}
static void process_match(struct apk_database *db, const char *match, struct apk_name *name, void *ctx)
{
struct apk_provider *p;
if (name == NULL) {
process_file(db, match);
return;
}
foreach_array_item(p, name->providers)
process_package(db, p->pkg);
}
static int manifest_main(void *applet_ctx, struct apk_ctx *ac, struct apk_string_array *args)
{
apk_name_foreach_matching(ac->db, args, apk_foreach_genid(), process_match, NULL);
return 0;
}
static struct apk_applet apk_manifest = {
.name = "manifest",
.open_flags = APK_OPENF_READ,
.main = manifest_main,
};
APK_DEFINE_APPLET(apk_manifest);
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